In situ stabilization remediation of cadmium contaminated soils of wastewater irrigation region using sepiolite

被引：0
作者：
Yuebing Sun Guohong Sun Yingming Xu Lin Wang Dasong Lin Xuefeng Liang Xin Shi Key Laboratory of Original Environmental Quality SafetyMinistry of AgricultureTianjin ChinaTianjin Key Laboratory of Agroenvironment and Agroproduct SafetyInstitute of AgroEnvironmental ProtectionMinistry of AgricultureTianjin China Department of Basic ScienceTianjin Agricultural UniversityTianjin China College of Environment and ResourcesJilin UniversityChangchun China [1 ,2 ,3 ,1 ,1 ,2 ,1 ,2 ,1 ,2 ,4 ,1 ,300191 ,2 ,300191 ,3 ,300384 ,4 ,130012 ]
机构：
来源：
Journal of Environmental Sciences | 2012年 / 10期
关键词：
Cd-contaminated soil; immobilization remediation; sepiolite; soil quality;
D O I：
暂无
中图分类号：
X53 [土壤污染及其防治];
学科分类号：
082803 ; 120405 ;
摘要：
The effects of immobilization remediation of Cd-contaminated soils using sepiolite on soil pH,enzyme activities and microbial communities,TCLP-Cd(toxicity characteristic leaching procedure-Cd) concentration,and spinach(Spinacia oleracea) growth and Cd uptake and accumulation were investigated.Results showed that the addition of sepiolite could increase soil pH,while the TCLP-Cd concentration in soil was decreased with increasing sepiolite.The changes of soil enzyme activities and bacteria number indicated that a certain metabolic recovery occurred after the sepiolite treatments,and spinach shoot biomass increased by 58.5%-65.5% in comparison with the control group when the concentration of sepiolite was 10 g/kg.However,the Cd concentrations in the shoots and roots of spinach decreased with an increase in the rate of sepiolite,experiencing 38.4%-59.1% and 12.6%-43.6% reduction,respectively,in contrast to the control.The results indicated that sepiolite has the potential for success on a field scale in reducing Cd entry into the food chain.
引用
收藏
页码：1799 / 1805
页数：7
相关论文
共 24 条
[1]   天然黏土联合磷肥对农田土壤镉铅污染原位钝化修复效应研究 [J].
梁学峰 ;
徐应明 ;
王林 ;
孙国红 ;
秦旭 ;
孙扬 .
环境科学学报, 2011, 31 (05) :1011-1018
[2]  
新型杂化材料钝化修复镉铅复合污染土壤的效应与机制研究[J]. 王林,徐应明,梁学峰,孙扬,秦旭.环境科学. 2011(02)
[3]   天然黏土矿物原位钝化修复镉污染土壤的研究 [J].
王林 ;
徐应明 ;
孙扬 ;
梁学峰 ;
秦旭 .
安全与环境学报, 2010, 10 (03) :35-38
[4]  
Response of soil catalase activity to chromium contamination[J]. Zofia Stepniewska,Agnieszka Wolińska,Joanna Ziomek.Journal of Environmental Sciences. 2009(08)
[5]  
Effects of cadium, zinc and lead on soil enzyme activities[J]. YANG Zhi-xin1,2, LIU Shu-qing2,*, ZHENG Da-wei1, FENG Sheng-dong2 (1. College of Resource and Environment, China Agricultural University, Beijing 100094, China;2. College of Resource and Environment, Agricultural University of Hebei, Baoding 071001, China.).Journal of Environmental Sciences. 2006(06)
[6]  
Identification of weed species with hyperaccumulative characteristics of heavy metals[J]. WEI Shuhe 1,2 and ZHOU Qixing 1,2 *(1. Key Laboratory of Terrestrial Ecological Process,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;2. Graduate School of the Chinese Academy of Sciences,Beijing 100039,China).Progress in Natural Science. 2004(06)
[7]   钝化作用对大豆污染土壤铅行为影响的研究 [J].
徐应明 ;
李军幸 ;
戴晓华 ;
袁志华 .
农业环境科学学报, 2003, (06) :685-688
[8]   沈阳张士灌区镉污染生态的研究 [J].
吴燕玉 ;
陈涛 ;
张学询 .
生态学报, 1989, (01) :21-26
[9]  
Stabilization of Pb and As in soils by applying combined treatment with phosphates and ferrous iron[J] . Anthimos Xenidis,Christina Stouraiti,Nymphodora Papassiopi.Journal of Hazardous Materials . 2010 (1)
[10]  
Urease, invertase, dehydrogenase and polyphenoloxidase activities in paddy soil influenced by allelopathic rice variety[J] . Y. Gu,P. Wang,C.H. Kong.European Journal of Soil Biology . 2009 (5)
123